| 发明名称 | Laminated gasket | ||
| 摘要 | The present invention provides a gasket for glass or resin syringes which is laminated with an inert resin film and is excellent in plugging properties, liquid-tightness, and slidability. The gasket laminated with an inert resin film has multiple circular ribs that are to be in sliding contact with an inner wall of a syringe barrel, wherein the circular ribs include a front circular rib having a sliding contact portion whose cross section has a diameter that expands substantially linearly toward a back end of the syringe barrel, the linear portion has a length of 10 to 55% of the length of a sliding side face of the gasket, and the diameter of the linear portion which expands substantially linearly toward a back end of the syringe barrel has a diameter expansion ratio X between a minimum diameter r (mm) and a maximum diameter R (mm) of 0.1 to 8.0%. | ||
| 申请公布号 | US8960685(B2) | 申请公布日期 | 2015.02.24 |
| 申请号 | US201314013798 | 申请日期 | 2013.08.29 |
| 申请人 | Sumitomo Rubber Industries, Ltd. | 发明人 | Maeda Katsushi;Yao Eiji |
| 分类号 | F16J15/02;A61M5/315 | 主分类号 | F16J15/02 |
| 代理机构 | Birch, Stewart, Kolasch & Birch, LLP | 代理人 | Birch, Stewart, Kolasch & Birch, LLP |
| 主权项 | 1. A gasket, laminated with an inert resin film, which has multiple circular ribs that are to be in sliding contact with an inner wall of a syringe barrel, wherein the multiple circular ribs include a front circular rib having a sliding contact portion whose cross section has a diameter that expands substantially linearly toward a back end of the syringe barrel, the linear portion has a length of 10 to 55% of the length of a sliding side face of the gasket, and the diameter of the linear portion which expands substantially linearly toward the back end of the syringe barrel has a diameter expansion ratio X between a minimum diameter r (mm) and a maximum diameter R (mm) of 0.1 to 8.0%. | ||
| 地址 | Kobe JP | ||